Home / 315,035,199.20-472,549,688.40-99,624,447.20

Finding the Fourth Proportional to 315,035,199.20, 472,549,688.40 and 99,624,447.20

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Solution

The fourth proportional to 315,035,199.20, 472,549,688.40 and 99,624,447.20 is: 149,435,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,035,199.20 : 472,549,688.40 = 99,624,447.20 : x
  2. Step 2: Convert to fraction form
    315,035,199.20/472,549,688.40 = 99,624,447.20/x
  3. Step 3: Cross multiply
    315,035,199.20x = 472,549,688.40 × 99,624,447.20
  4. Step 4: Simplify right side
    315,035,199.20x = 47,077,501,481,382,248
  5. Step 5: Solve for x
    x = 47,077,501,481,382,248/315,035,199.20
  6. Step 6: Final answer
    x = 149,435,687.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.